1525613045 has 32 divisors (see below), whose sum is σ = 2055939840. Its totient is φ = 1077027840.

The previous prime is 1525613041. The next prime is 1525613053. The reversal of 1525613045 is 5403165251.

It is not a de Polignac number, because 1525613045 - 2² = 1525613041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525613041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1511501 + ... + 1512509.

It is an arithmetic number, because the mean of its divisors is an integer number (64248120).

Almost surely, 2^1525613045 is an apocalyptic number.

It is an amenable number.

1525613045 is a deficient number, since it is larger than the sum of its proper divisors (530326795).

1525613045 is a wasteful number, since it uses less digits than its factorization.

1525613045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1525613045 is about 39059.0968277558. The cubic root of 1525613045 is about 1151.1929762542.

Adding to 1525613045 its reverse (5403165251), we get a palindrome (6928778296).

The spelling of 1525613045 in words is "one billion, five hundred twenty-five million, six hundred thirteen thousand, forty-five".